cagey

adj

1. Wary, careful, shrewd.

   “Samara: I will be in the shadows watching, Shepard. You will never be alone -- this I swear. But you cannot barge in with guns and allies. Samara: Morinth is far too cagey -- she'd simply disappear. This is a subtle, delicate act. Trust me.”

   “But with both sides in the Premier League's bottom three before the game began, the three points at stake made for a cagey match.”

2. Uncommunicative; unwilling or hesitant to give information.

   “John F Kennedy’s secret talks with Soviet intelligence, surreptitious tape recordings and “girlfriend system” create a new portrait of a cunning and cagey JFK, according to a historian who has researched a treasure trove of recently released recordings and papers of the late president.”